Fix

CMakeLists.txt

@@ -5,8 +5,9 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 project(stm32)
 
-add_subdirectory(bsp)
-add_subdirectory(lib)
+add_subdirectory(bsp)   #application
+add_subdirectory(lib)   #stm32f4xx library
+add_subdirectory(lwip)  #lwip library
 
 
 

app/app.c

@@ -1,7 +1,5 @@
 #include "app.h"
 
-
-
 void delay(uint32_t ms) {
     ms *= 16800;
     while(ms--) {
@@ -20,8 +18,8 @@ void app() {
         // printf("Hello, world%.2f\r\n", 2.71);
         RCC_ClocksTypeDef clk;
         RCC_GetClocksFreq(&clk);
-        printf("LOAD: %.d\r\n", SysTick->LOAD);
-        printf("VAL: %.d\r\n", SysTick->VAL);
+        printf("Status: %.d\r\n", getRegister());
+        // printf("VAL: %.d\r\n", SysTick->VAL);
         loop();
     };
 }

bsp/CMakeLists.txt

@@ -4,6 +4,10 @@ project(${target_base_name})
 
 set(elf_file ${target_base_name}.elf)
 
+set(CMAKE_PREFIX_PATH ${CMAKE_SOURCE_DIR}/lwip)
+
+find_package(LwIP REQUIRED)
+
 add_executable(${elf_file}    
     ${CMAKE_SOURCE_DIR}/app/app.c 
     bsp.c
@@ -14,6 +18,7 @@ add_executable(${elf_file}
 target_include_directories(${elf_file} PRIVATE 
     ${CMAKE_SOURCE_DIR}/app
     ${CMAKE_SOURCE_DIR}/bsp
+    # ${CMAKE_SOURCE_DIR}/lwip/src/include/lwip 
 )
 
 target_compile_options(${elf_file} PRIVATE -Wall -Wextra -Os)

bsp/bsp.c

@@ -1,15 +1,7 @@
-#include "bsp.h"
 #include <stdio.h> 
-// int _write(int fd, char* ptr, int len) {
-//     int i= 0;
-//     while(i < len) {
-//         while (USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET); 
-//         USART_SendData(USART2, *ptr++);
-//         i++;
-//     }
+#include "bsp.h"
  
-//     return len;
-// }
+static uint32_t EthStatus = 0;
 
 void SysTick_Handler(void)
 {
@@ -33,17 +25,26 @@ void gpio_init() {
     const uint16_t led_pins = GPIO_Pin_0 | GPIO_Pin_7 | GPIO_Pin_14;
     const uint16_t usart_pins = GPIO_Pin_5 | GPIO_Pin_6;
 
-    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
-    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
+    RCC_AHB1PeriphClockCmd(
+        RCC_AHB1Periph_GPIOA | 
+        RCC_AHB1Periph_GPIOB | 
+        RCC_AHB1Periph_GPIOC | 
+        RCC_AHB1Periph_GPIOD | 
+        RCC_AHB1Periph_GPIOG, 
+        ENABLE
+    );
 
     GPIO_InitTypeDef gpio;
 
+/***************LED_CONF********************/
     GPIO_StructInit(&gpio);
     gpio.GPIO_Mode = GPIO_Mode_OUT;
     gpio.GPIO_Pin = led_pins;
     GPIO_Init(GPIOB, &gpio);
     GPIO_ResetBits(GPIOB, led_pins);
+/*******************************************/
 
+/**************UART_CONF********************/
     gpio.GPIO_Mode = GPIO_Mode_AF;
     gpio.GPIO_Pin = usart_pins;
     gpio.GPIO_Speed = GPIO_Speed_50MHz;
@@ -53,6 +54,31 @@ void gpio_init() {
 
     GPIO_PinAFConfig(GPIOD, GPIO_PinSource5, GPIO_AF_USART2);
     GPIO_PinAFConfig(GPIOD, GPIO_PinSource6, GPIO_AF_USART2);
+/*******************************************/
+
+/***************ETH_CONF********************/
+    gpio.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_7; 
+    GPIO_Init(GPIOA, &gpio);
+    GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_ETH); //RMII ref clock
+    GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_ETH); //RMII MDIO
+    GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_ETH); //RMII RX Data Valid
+
+    gpio.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5;
+    GPIO_Init(GPIOC, &gpio);
+    GPIO_PinAFConfig(GPIOC, GPIO_PinSource1, GPIO_AF_ETH); //RMII MDC
+    GPIO_PinAFConfig(GPIOC, GPIO_PinSource4, GPIO_AF_ETH); //RMII RXD0
+    GPIO_PinAFConfig(GPIOC, GPIO_PinSource5, GPIO_AF_ETH); //RMII RXD1
+
+    gpio.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_13;
+    GPIO_Init(GPIOG, &gpio);
+    GPIO_PinAFConfig(GPIOG, GPIO_PinSource11, GPIO_AF_ETH); //RMII TX enable
+    GPIO_PinAFConfig(GPIOG, GPIO_PinSource13, GPIO_AF_ETH); //RMII TXD0
+
+    gpio.GPIO_Pin = GPIO_Pin_13;
+    GPIO_Init(GPIOB, &gpio);
+    GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_ETH); //RMII TXD1
+/*******************************************/
+
 }
 
 void usart_init() {
@@ -65,13 +91,43 @@ void usart_init() {
     //NVIC_EnableIRQ(USART2_IRQn);
 }
 
-void ethernet_init() {
+const uint8_t MAC_ADDR[6] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55};
+const uint8_t PHY_ADDR = 0x00;
+
+void eth_init() {
     ETH_InitTypeDef ETH_InitStructure;
+    
+    ETH_DeInit();
+    ETH_SoftwareReset();
+    printf("Eth reseting...\r\n");
+    while (ETH_GetSoftwareResetStatus() == SET);
+    printf("Done\r\n");
+
+    ETH_MACAddressConfig(ETH_MAC_Address0, MAC_ADDR);
+
     RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_ETH_MAC | RCC_AHB1Periph_ETH_MAC_Tx | RCC_AHB1Periph_ETH_MAC_Rx, ENABLE);
+    ETH_StructInit(&ETH_InitStructure);
+    ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable;
+    ETH_InitStructure.ETH_Speed = ETH_Speed_100M;
+    ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;   
+    ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
+    ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
+    ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
+    ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Enable;
+
+    ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Enable;
+    ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
+    ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
+    ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
+
+    
+    EthStatus = ETH_Init(&ETH_InitStructure, PHY_ADDR);
+    printf("Eth init with status: %d\r\n", EthStatus);
+
+    ETH_Start();
 }
 
 void board_init() {
-    // uint32_t tick = 16777216;
     uint32_t tick = 0x1000000;
     
     SysTick_Config(tick);
@@ -80,10 +136,13 @@ void board_init() {
     __enable_irq(); 
     gpio_init();
     usart_init();
-    // ETH_BSP_Config();
+    eth_init();
     printf("Controller is started...\n");
     // printf("clk: %.d\r\n", tick);
 
 }
 
+uint32_t getRegister() {
+    return EthStatus;
+}
 

bsp/bsp.h

@@ -5,9 +5,10 @@
 #include "stm32f4xx_gpio.h"
 #include "stm32f4xx_rcc.h"
 #include "stm32f4xx_usart.h"
+#include "stm32f4xx_exti.h"
 #include "stm32f4x7_eth.h"
-// #include "stm32f4x7_eth_bsp.h"
+#include "misc.h"
 
 void board_init();
-
+uint32_t getRegister();
 #endif

lib/CMakeLists.txt

@@ -50,6 +50,7 @@ target_include_directories(stm32f4xx PUBLIC
 target_compile_definitions(stm32f4xx PUBLIC USE_STDPERIPH_DRIVER)
 target_compile_definitions(stm32f4xx PUBLIC ${DEVICE_FAMILY})
 target_compile_definitions(stm32f4xx PUBLIC HSE_VALUE=8000000)
+target_compile_definitions(stm32f4xx PUBLIC USE_STM324x7I_EVAL)
 
 target_compile_options(stm32f4xx PRIVATE -Wall -Wextra -Os -nostartfiles)
 target_link_libraries(stm32f4xx PUBLIC -T${LINKER_SCRIPT})